Nondestructive inspection system for laminated products
US5167157A · kind A · utility
18Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Mar 26, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/048
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for inspecting multilayer articles. An article to be inspected is clamped in a liquid filled tank between a pair of focused transducers. An ultrasonic pulse is introduced to a cross section of the article from each transducer sequentially. Reflections from the surfaces and interfaces within the article are received by each transducer and transmitted to a computer for analysis. The thicknesses of the innermost layers of the article are determined by calculating the mean of the measurements from each transducer for each inner layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.